 | | Report (volume) | | Tertiary Volcanic Host Rocks, Sleeper Gold-Silver Deposit, Humboldt County, Nevada Geology and Geochemistry...Tertiary Volcanic Host Rocks, Sleeper Gold-Silver Deposit, Humboldt County, Nevada By J. Thomas Nash, William...Tertiary volcanic host rocks, Sleeper gold-silver deposit, Humboldt County, Nevada I by J. Thomas Nash, William...Gold ores-Geology-Nevada-Humboldt County. 2. Silver ores-GeologyNevada-Humboldt County. 3. Geology, St...Stratigraphic-Tertiary. 4. GeologyNevada-Humboldt County. I. Utterback, W.C. II. Trudel, Wayne S. III. |  | | Report (issue) | | and geochemistry of the Sleeper Gold-Silver Deposit, Humboldt County, Nevada an interim report By J................................................. Mining and exploration history......................................................................... Mine geology...........................................Figure 1. Location and geology setting of the Sleeper mine. Regional geology is simplified from Wilden....... 3 Figure 2. Generalized geology of the Sleeper mine area and western foothills of the Slumbering |  | | Journal (article/letter/editorial) | | derived from mafic magmas likely related to northern Nevada rifting processes and/or to the arrival of the...3 Yellowstone 1.3 2.0 0.6 HS (B) Northern Nevada 'Bonanza' ores B 17 Boise Table 1. Pb Isotope...Amethyst 15 7 Sandman 8 New Alma 9 Jumbo 10 Sleeper 11 McDermitt 12 National 13 Midas 14 Ivanhoe 15...FIG. 1. (A) Map showing the locations of northern Nevada bonanza deposits and Columbia River Basalt (CRB)...labeled NNR represent the inferred limits of Northern Nevada Rift. In nature, gold is usually alloyed with |  | Saunders, J. A., Unger, D. L., Kamenov, G. D., Fayek, M., Hames, W. E., Utterback, W. C. (2008) Genesis of Middle Miocene Yellowstone hotspot-related bonanza epithermal Au–Ag deposits, Northern Great Basin, USA. Mineralium Deposita, 43 (7) 715-734 doi:10.1007/s00126-008-0201-7 | Journal (article/letter/editorial) | | epithermal Au–Ag deposits, Northern Great Basin, USA J. A. Saunders & D. L. Unger & G. D. Kamenov & M...Auburn University, 210 Petrie Hall, Auburn, AL 36849, USA e-mail: saundja@auburn.edu G. D. Kamenov Department...Williamson Hall, P.O. Box 112120, Gainesville, FL 32611, USA M. Fayek Department of Geological Sciences, University...89445, USA Present address: D. L. Unger Victoria Resources, 240 S. Rock Blvd., Reno, NV 89502, USA textures...gels) from super-highgrade banded ores from the Sleeper deposit show that oreforming solutions had δ18O |  | | Journal (article/letter/editorial) | | assemblage consist mostly of basalt to andesite and rhyolite compositions that generally contain anhydrous...assemblage include deposits in the Midas (Ken Snyder), Sleeper, DeLamar, Mule Canyon, Buckhorn, National, Hog...showed that lowsulfidation deposits in northern Nevada could be divided into two subtypes based on their...about 22 to 4 Ma. By contrast, the bimodal basalt-rhyolite assemblage is related to continental rifting (Basin...ve Ri Yellowstone Hot Spot Wyoming 0 Ma 40° Nevada S ie GREAT BASIN rra NNR Utah Ne da va California |  | | Journal (article/letter/editorial) | | Miocene bonanza epithermal ores from northern Nevada, USA James A. Saunders 1 & Michelle Burke 2 & Matthew...handling: B. Lehmann * James A. Saunders 1 Auburn, AL, USA 2 Department of Geology and Environmental Earth...University, 118 Shideler Hall,, Oxford, OH 45056, USA 3 Department of Geology, Kansas State University...University, 108 Thompson Hall,, Manhattan, KS 66506, USA they must be dispersed in a stable manner in another...have formed during the dominantly bimodal basalt-rhyolite volcanism associated with the northern NV rift |  | Peters, S.G., Nash, J.T., John, D.A., Spanski, G.T., King, H.D., Connors, K.A., Moring, B.C., Doebrich, J.L., McGuire, D.J., Albino, G.V., Dunn, V.C., Theodore, T.G., Ludington, S.D. (1996) Metallic mineral resources in the U.S. Bureau of Land Management's Winnemucca District and Surprise Resource Area, northwest Nevada and northeast California. Open-File Report Vol. 1996 (96-712) US Geological Survey doi:10.3133/ofr96712 | Report (issue) | | Management's Winnemucca District and Surprise Resource Area, northwest Nevada and northeast California...Ludington3 Open-File Report 96-712 1996 1 Reno, Nevada 89557 2 Denver, Colorado 80228 3 Menlo Park, California...Canada 7 U.S. Bureau of Land Management, Winnemucca, Nevada 89445 This report is preliminary and has not been............................................. 18 Humboldt River porphyry tracL............................Study Areas and other areas in the Winnemucca District and Surprise Resource Area for which resource |  | | Journal (article/letter/editorial) | | Correlations at Buckskin Mountain, National District, Humboldt County, Nevada PETER G. VIKRE† U.S. Geological Survey...Sciences and Engineering, University of Nevada, Reno, Reno, Nevada 89557 Abstract At Buckskin Mountain...Mountain (elev 2,650 m, 8,743 ft), Humboldt County, Nevada, a hydrothermal system, imposed on a middle Miocene...system developed among ca. 16 to 12 Ma basalt-rhyolite eruptive centers throughout the northern Great...zone of partially leached basinal deposits and rhyolite from the paleosurface to a depth of ~60 m, and |  | | Report (issue) | | MANAGEMENT'S WINNEMUCCA DISTRICT AND SURPRISE RESOURCE AREA, NORTHWEST NEVADA AND NORTHEAST CALIFORNIA... MS 176, Mackay School of Mines, University of Nevada, Reno, Reno, NV 89557-0047 CONTENTS Introduction...Tectonics ....................... Interior Andesite-Rhyolite Assemblage ................................ Volcanic...Tectonics ........................ Bimodal Basalt-Rhyolite Assemblage ................................. Volcanic........................................ Northern Nevada Rift ......................................... |  | | Journal (article/letter/editorial) | | the genesis of bonanza Au-Ag ores of the Sleeper deposit, Nevada J.A. Saunders, P.A. Schoenly Department...Geology,Auburn University,Auburn, AL 3684%5305, USA Received: 29 November 1993/Accepted: 23 May 1994...composition for bonanza oreforming fluids at the Sleeper deposit was calculated by the computer program...factor in the genesis of bonanza Au-Ag ores at the Sleeper deposit. Geochemical modelling of possible ore-forming...Western Americas such as Comstock and Tonopah, Nevada, Creede, Colorado, Fresnillo and Guanajuato, Mexico |  | | Report (issue) | | GEOLOGICAL SURVEY Some Current Research in Eastern Nevada and Western Utah by the U.S. Geological Survey...posters or oral presentations at a meeting in Elko, Nevada, on September 19 and 20, 1991, sponsored by the...the Elko Chapter of the Geological Society of Nevada. The purpose of the meeting was to present some of...activities of the U.S. Geological Survey in eastern Nevada and western Utah. Edited by Charles H. Thorman1...Miocene Volcanic Rocks at the Sleeper Gold-Silver Mine, Humboldt County, Nevada, by J. Thomas Nash and Mark |  | | Journal (article/letter/editorial) | | Special Issue Devoted to Gold Deposits in Northern Nevada: Part 1. Regional Studies and Epithermal Deposits...Menlo Park, California 94025 Introduction Northern Nevada is one of the Earth’s premier gold- and silver-producing...gold mining district, producing nearly 125 t (4 Moz) of gold annually. Since large-scale mining began...began in 1965 with the opening of the Carlin mine, the Carlin trend has produced more than 1555 t (50 Moz)...2001, gold production from the entire state of Nevada was nearly 253 t (8.13 Moz), which accounted for |  | | Journal (article/letter/editorial) | | CO 80401, USA; tmonecke@mines.edu FLUID INC., 1401 Wewatta St. #PH3, Denver, CO 80202, USA; fluidinc@comcast...low-sulfidation epithermal precious metal deposit in Nevada showed that colloform bands in these veins exhibit...low-sulfidation epithermal quartz veins from the Sleeper deposit in Nevada forms dendrites intergrown with fine-grained...low-sulfidation epithermal gold–silver deposit in Nevada. Both silica deposits are composed of silica microspheres...the Waiora Formation are host to several large rhyolite units which have high fracture permeability in |  | Leavitt, E. D., Spell, T. L., Goldstrand, P. M., Arehart, G. B. (2004) Geochronology of the Midas Low-Sulfidation Epithermal Gold-Silver Deposit, Elko County, Nevada. Economic Geology, 99 (8) 1665-1686 doi:10.2113/gsecongeo.99.8.1665 | Journal (article/letter/editorial) | | Low-Sulfidation Epithermal Gold-Silver Deposit, Elko County, Nevada E. D. LEAVITT,† Department of Geological Sciences...Sciences, Mail Stop 172, University of Nevada, Reno, Reno, Nevada 89557-0001 T. L. SPELL, Department of...Geoscience, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4010 P. M. GOLDSTRAND...GOLDSTRAND, Bureau of Mining Regulation and Reclamation, 333 W. Nye Lane, Carson City, Nevada 98706 AND G. B...Geological Sciences, Mail Stop 172, University of Nevada, Reno, Reno, NV 89557-0001 Abstract The Midas |  | | Journal (article/letter/editorial) | | Gold Company, 9670 Gateway Drive, Suite 200, Reno, Nevada 89521. 0361-0128/07/3685/923-26 et al., 1995;...for rocks surrounding epithermal deposits at Sleeper, Nevada, United States, and Mount Muro, Kalimantan...igneous rock compositions from basalt through to rhyolite. The line of slope 1 that extends from the origin...K-feldspar 1 K ga Illite ain ,C ag in K-mica Rhyolite Na lo ,N a, Ca 0.4 K, Plagioclase+Albite+K-feldspar...Ore-bearing veins are hosted by a 54 to 55 Ma rhyolite flowdome complex (Cornejo et al., 2003) that partly |  | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA Peer Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU... UNIVERSITY Reno & Las Vegas OF NEVADA PRESS GEOLOGY Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...otherwise noted Map of Mining Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines...Cataloging-in-Publication Data Castor, Stephen B, Minerals of Nevada / Stephen B. Castor and Gregory C. Ferdock.— Ist | | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA STEPHEN B. CASTOR and G R EGOR Y C . F E R D OC K l NEVADA BUREAU...association with the UNIVERSITY OF NEVADA PRESS Reno & Las Vegas Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright© 2004 by Uni versity of Nevada Press Photographs...Districts and si gnificant minernl occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved...-Publ ication Dat,i Castor, Stephen B. Minerals of Nevada/ Stephen B. Castor and Gregory C. Ferdock.- rst |  | | Journal (article/letter/editorial) | | 409–424 Geology of the Ivanhoe Hg-Au District, Northern Nevada: Influence of Miocene Volcanism, Lakes...Geological Survey, MS 176, University of Nevada, Reno, Reno, Nevada 89557-0047 Abstract The mercury-gold...mercury-gold deposits of the Ivanhoe mining district in northern Nevada formed when middle Miocene rhyolitic volcanism...climate and nearby volcanism. The eruption of rhyolite and andesite flows and domes periodically disrupted...lakebeds. Mercury-gold mineralization was coeval with rhyolite volcanism and high-angle faulting, and it took |  | John, D. A., Hofstra, A. H., Fleck, R. J., Brummer, J. E., Saderholm, E. C. (2003) Geologic Setting and Genesis of the Mule Canyon Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central Nevada. Economic Geology, 98 (2) 425-463 doi:10.2113/gsecongeo.98.2.425 | Journal (article/letter/editorial) | | Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central Nevada DAVID A. JOHN,† U.S. Geological Survey, 345 Middlefield...Company, Yanacocha, Peru Abstract The Mule Canyon mine exploited shallow, low-sulfidation, epithermal Au-Ag...the west side of the Northern Nevada rift in northern Lander County, Nevada. Mule Canyon consists of six...deposits associated with tholeiitic bimodal basalt-rhyolite magmatism. The ore is hosted by a basalt-andesite...e-mail, djohn@usgs.gov *Present address: Newmont Mining Corp., PO Box 388, Valmy, NV 89438. 0361-0128/01/3335/425-39 |  | | Report (issue) | | wu OUTLINE OF NEVADA MINING HISTORY— Joseph V: Tingley a RobertC.Horton _ Francis C. Lincoln 3 . ...Publication of this new edition of “Outline of Nevada Mining History” was made — possible with the assistance...eh aa nearly 48 million acres of public land in Nevada. Most of the minerals, _ _ geothermal energy, and...ahij 4 = Wh A a ‘ a a y 4 Pte Es in Nevada comes from publicland. First edition, first printing...Leshendok, U.S. Bureau of Land Management Eric Moody, Nevada Historical Society é Jon Price, National Research |  | | Journal (article/letter/editorial) | | TEXTURES IN BONANZA ORES OF THE SLEEPER DEPOSIT, HUMBOLDT COUNTY, NEVADA: EVIDENCE FOR COLLOIDS AND IMPLICATIONS...Sleeperprovidessomeusefulconstraints posit, Humboldt County, Nevada, exhibit textural on ore-formingprocesses...of the bonanzaportionsof theseveinsapparently Sleeper ores. This communicationpresentsaddiformedat depths(...HumboldtCounty, The millimeter-scalebandingin bonanzaore at Nevada,approximately 45 km northwestof WinneSleeper provides...in the bandedbonanza ore hasnotbeenobservedat Sleeper,precludingthe useof fluidinclusionmicrothermometry |  | Nash, J.T., Fey, David L., Motooka, Jerry M., Siems, D.F. (1990) Geochemical analyses of ore and host rocks, Sleeper gold-silver deposit, Humboldt County, Nevada, Part A - Paper copy. Open-File Report Vol. 1990 (90-702) US Geological Survey doi:10.3133/ofr90702a | Report (issue) | | Analyses of Ore and Host Rocks, Sleeper Gold-Silver Deposit, Humboldt County, Nevada by J.T. Nash,* D.L. Fey................................................ 1 Mine geology...........................................localities in the Sleeper mine and vicinity........................ In pocket Map A-Sleeper mine Map B-Area...east of Sleeper mine Figure 1. Map showing location and geologic setting of the Sleeper mine, Humboldt...Humboldt County, Nevada........................................... 2 2. Generalized geology of the Sleeper mine |  | | Journal (article/letter/editorial) | | precious-metal mineralization in the southwestern Nevada volcanic field, USA S t e p h e n B. C a s t o r a a n d...i s s b "Nevada Bureau of Mines and Geology, Mackay School of Mines, Universityof Nevada, Reno, NV 89557...89557. USA bDepartment of Geological Sciences, Mackay School of Mines, Universityof Nevada, Reno. NV...NV 89557, USA (Received August 27, 1991; accepted after revision January 27, 1992 ) ABSTRACT Castor, S...southwestern Nevada volcanic field, USA. Ore Geol. Rev., 7: 193-223. The southwestern Nevada volcanic field |  | | Report (issue) | | Miocene diatomite, Trinity Pass Area, Pershing County, Nevada By J. THOMAS NASH* Open-File Report 95-84...deposits in the Trinity Pass area, Pershing County, Nevada ........................................ 2...column for the Trinity Pass area, Pershing County, Nevada ......................................... 4...resources in the Trinity Pass area, Pershing County, Nevada ........................... 13 Plate 1. Reconnaissance...geologic map of the Trinity Pass area, Pershing County, Nevada ................................... in pocket |  | | Report (volume) | | Mineral Resources of the Reno 1 o by 2° Quadrangle, Nevada and California U.S. GEOLOGICAL SURVEY BULLETIN...Mineral Resources of the Reno 1 o by 2° Quadrangle, Nevada and California By DAVID A. JOHN, JOHN H. STEWART...mineral resources of the Reno 1o by 2° quadrangle, Nevada and California I by David A. John ... [et al.]...resources-Nevada-Reno Region. 2. Mines and mineral resources-California. 3. Geology-Nevada-Reno Region...intrusive, and sedimentary rocks 15 Interior andesite-rhyolite assemblage (31 to 20 Ma) 15 Western andesite assemblage |
|
